Requirements for secure clock synchronization

L Narula, TE Humphreys - IEEE Journal of Selected Topics in …, 2018 - ieeexplore.ieee.org
This paper establishes a fundamental theory of secure clock synchronization. Accurate clock
synchronization is the backbone of systems managing power distribution, financial …

GPS multireceiver joint direct time estimation and spoofer localization

S Bhamidipati, GX Gao - IEEE Transactions on Aerospace and …, 2018 - ieeexplore.ieee.org
We propose a novel algorithm for the joint estimation of spoofer location (LS) and GPS time
using multireceiver direct time estimation (MRDTE). To achieve this, we utilize the geometry …

GPS time authentication against spoofing via a network of receivers for power systems

S Bhamidipati, TY Mina, GX Gao - 2018 IEEE/ION Position …, 2018 - ieeexplore.ieee.org
Due to the unencrypted structure of civil GPS signals, the timing information supplied to the
PMUs in the power grid is vulnerable to spoofing attacks. We propose our GPS time …

On PMU data integrity under GPS spoofing attacks: A sparse error correction framework

S De Silva, J Kim, E Cotilla-Sanchez… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Consider the problem of mitigating the impact on data integrity of phasor measurement units
(PMUs) given a GPS spoofing attack. We present a sparse error correction framework to …

GNSS spoofer localization with counterfeit clock bias observables on a mobile platform

X Chen, YJ Morton, W Yu, TK Truong - IEEE Sensors Journal, 2023 - ieeexplore.ieee.org
It is widely known that spoofing is a major threat that adversely impacts the reliability and
accuracy of global navigation satellite systems (GNSS) receivers. Apart from detection and …

Sparse error correction for PMU data under GPS spoofing attacks

S De Silva, T Hagan, J Kim… - 2018 IEEE Global …, 2018 - ieeexplore.ieee.org
Time-synchronized phasor measurements from phasor measurement units (PMUs) are
valuable for real time monitoring and control. However, their reliance on civilian GPS signals …

GNSS Spoofing Detection by Crowdsourcing Double Differential Pseudorange Spatial Distribution

X Chen, K Wang - IEEE Transactions on Instrumentation and …, 2025 - ieeexplore.ieee.org
It is widely known that spoofing is a major threat that adversely impacts the reliability and
accuracy of GNSS applications. Current spoofing detection methods mostly work with …

Wide-area GPS time monitoring against spoofing using belief propagation

S Bhamidipati, KJ Kim, H Sun… - 2019 16th Annual IEEE …, 2019 - ieeexplore.ieee.org
A wide-area time authentication algorithm is proposed to compute the Global Positioning
System (GPS) timing that is resilient against spoofing attacks. The considered wide-area …

Closed-form solution for synchrophasor data correction under GPS spoofing attack

X Fan, S Pal, D Duan, L Du - 2018 IEEE Power & Energy …, 2018 - ieeexplore.ieee.org
Phasor Measurement Units (PMUs) are increasingly being deployed to augment monitoring,
protection and control applications in the power grid. PMUs rely on the Global Positioning …

Direct position estimation

P Closas, G Gao - … , navigation, and timing technologies in the …, 2020 - Wiley Online Library
This chapter presents an innovative concept that helps overcome some of the critical
challenges and limitations in standard global navigation satellite system (GNSS) position …